US5369826A - Bottom structure of a bed - Google Patents

Bottom structure of a bed Download PDF

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Publication number
US5369826A
US5369826A US08/060,997 US6099793A US5369826A US 5369826 A US5369826 A US 5369826A US 6099793 A US6099793 A US 6099793A US 5369826 A US5369826 A US 5369826A
Authority
US
United States
Prior art keywords
bed
bottom structure
strips
parallel strips
series
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/060,997
Other languages
English (en)
Inventor
Yasuhiro Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paramount Bed Co Ltd
Original Assignee
Paramount Bed Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paramount Bed Co Ltd filed Critical Paramount Bed Co Ltd
Priority to US08/060,997 priority Critical patent/US5369826A/en
Priority to DE69326756T priority patent/DE69326756T2/de
Priority to EP93201966A priority patent/EP0632985B1/de
Assigned to PARAMOUNT BED COMPANY LIMITED reassignment PARAMOUNT BED COMPANY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IKEDA, YASUHIRO
Application granted granted Critical
Publication of US5369826A publication Critical patent/US5369826A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/123—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/005—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases foldable or dismountable

Definitions

  • the present invention relates to a bottom structure of a bed which allows the bottom to be bent upward, forming a large curvature such that it does not cause a patient to feel any discomforting pressure.
  • the present invention also relates to a bottom structure of a bed which allows a patient to experience minimum physical discomfort irrespective of his body size when the bottom structure of a bed is bent, forming a large curvature in the leg portion corresponding to the leg or knee position of the patient or forming a large curvature in the waist position of the patient.
  • the bottom structure is divided into a back portion, waist portion, leg portion, etc. to allow the back portion and/or the leg portion to be raised by a drive.
  • the bottom structure can be bent upward to alter the position of the back portion or knee portion, using various mechanisms.
  • An ordinary bed structure has a waist portion and a leg portion simply joined. It can happen that the joint between the waist portion and the leg portion does not fit or suit the knee position of the patient whose body size does not conform to a standard bed, as a result one can feel physical discomfort when the leg portion of the bed is raised. To overcome this various beds having different positions of the bottom joint are required to be prepared.
  • An ordinary bed structure can also have a back portion and a waist portion simply joined.
  • the joint acts as a pivot for the back portion, when raising and lowering the back portion. Therefore, as the back portion is raised to a certain angle, the space formed near the joint between the back portion and the waist portion becomes narrow. As a result, the waist and abdominal region of the patient are uncomfortably pressed by the mattress, which is bent at an angle.
  • An object of the present invention is to provide a bottom structure of a bed which allows the leg portion to be raised, without causing any patient to feel physical discomfort.
  • Another object of the present invention is to provide a bottom structure of a bed designed to allow bending the bottoms structure in a large curvature forming a curved space at the bend without causing a patient to feel pressure.
  • the present invention provides a bottom structure of a bed, comprising a leg portion of a bottom, being formed to be bendable by a series of parallel strips mutually sequentially connected on the upper side, and each of the strips, being shorter in width on the under side than on the upper side.
  • the present invention also provides a bottom structure of a bed, comprising a back and/or waist portion, being formed to be bendable by a series of parallel strips mutually sequentially connected on the bottom or under side, and each of the strips, being shorter in width on the under side than on the upper side.
  • the parallel strips of the leg portion are formed by thermoplastic molding as hollow strips mutually sequentially connected on the upper or under side, with gaps formed between the respective adjacent strips on the side away from the connected side.
  • leg portion If the leg portion is raised, the respective parallel strips are brought into mutual contact on the under side, and as a result, the leg portion corresponding to the leg position of the patient is bent and protrudes upward.
  • the bottom is bent upward to raise the back portion, the respective parallel strips are brought into mutual contact on the upper side.
  • the portion of the bottom corresponding to the waist of the patient is bent in a large curvature. So, the space formed at the bent portion of the bottom, corresponds to the patient and causes minimum feeling of pressure.
  • FIG. 1 is a side illustration showing an essential region of a bed having a bottom structure with a leg portion according to the present invention.
  • FIG. 2 is an enlarged side view showing a cross section of the leg portion shown in the FIG. 1.
  • FIG. 3 is an enlarged side view showing a cross section of the bottom of another embodiment.
  • FIG. 4 is a side illustration showing an essential region of a bed having a bottom structure with a back portion of the present invention.
  • FIG. 5 is an enlarged side view showing a cross section of the back portion shown in FIG. 4.
  • FIG. 6 is an enlarged side view showing a cross section of the back portion of another embodiment.
  • FIG. 7 is an illustration showing a bottom structure of a bed where the bottom is covered with a flexible sheet.
  • FIG. 8 is an illustration showing a bottom structure of a bed where a flexible sheet is laid on the upper side of the bottom structure.
  • FIG. 9 is an illustration showing a bottom structure of a bed where a mattress (or other material) is caught in the bottom structure.
  • the bottom structure of a bed is designed to allow the leg portion of a bed bottom, corresponding to the leg position of a patient, to be bent at a large curvature.
  • the leg portion of a bed bottom corresponding to the leg position of the patient is formed by parallel strips, which allow bending.
  • the parallel strips are preferably formed by thermoplastic molding hollow strips.
  • the parallel strips are preferably almost trapezoidal in cross section and are sequentially connected on the upper side, with gaps formed between the respectively adjacent parallel strips on the under side.
  • the leg portion may be provided with a leg portion raising mechanism, which raises the leg portion using a support arm.
  • the bottom structure of a bed is designed to allow a bed bottom to be bent upward in a large curvature, thus providing a bed which allows back formation without causing a patient to feel any displeasing pressure.
  • a bottom is formed by using parallel strips at the portion corresponding to the waist of the patient, to allow being upward.
  • the number of parallel strips is preferably five, and they are preferably formed by thermoplastic molding hollow strips.
  • the parallel strips are preferably almost trapezoidal in cross section, to form gaps with an angle of about 16 degrees between the respectively adjacent faces of the parallel strips on the upper side.
  • the bottom is provided with a back raising mechanism for bending the bottom upward through a support arm.
  • a comfortable bed designed to ease the feeling of pressure caused to a patient by back raising action.
  • the bottom structure of a bed includes a flexible sheet. If a bottom structure has gaps on the upper side, when it is bent, mattress material or other covering material can be caught between the parallel strips.
  • One way to minimize material being caught in the gaps and reduce interference with the bottom structure is to insert a flexible bottom sheet. This sheet prevents material from interfering with the operation of the bottom structure and reduces the collection of dust and dirt in the gaps of the bottom structure as well.
  • a bottom (2) is divided into a back portion (3) and a leg portion (4) corresponding approximately to the leg position of the patient.
  • the leg portion (4) is formed by parallel strips (5) to allow bending, and the parallel strips are sequentially mutually connected on the upper side.
  • Each of the parallel strips is shorter in width on the under side than on tile upper side.
  • the parallel strips (5) of the leg portion (4) are preferably formed by thermoplastic molding hollow strips almost trapezoidal in cross section as shown in FIG. 2, and sequentially connected on the upper side, with gaps (7) formed between the respectively adjacent parallel strips (5) on tile under side.
  • a leg portion raising mechanism is provided to bend the leg portion upward by a support arm (6).
  • the support arm (6) is pivotally rotated to rise, causing the respective parallel strips (5) to be brought into mutual contact on the under side, thus causing the leg portion (4) to bend and protrude upward.
  • the leg portion (4) is generally bent at a large radius of curvature (8). Therefore, even if the protruding top does not suit the knee position of the patient, the knees are still kept from experiencing pressure, and the patient does not feel any discomfort.
  • the parallel strips (5) are formed in a trapezoidal shape only at the lower halves of the strips in cross section as shown in FIG. 3.
  • the gaps (9) formed between the respectively adjacent parallel strips (5) allow the leg portion to be bent generally at a large curvature by leg portion raising, and thus the bed is especially suitable for tall patients.
  • leg portion (4) is preferably formed by thermoplastic molding of hollow strips, it can be easily prepared, is simply in structure, and economically advantageous in view of the reduced cost to manufacture.
  • the present invention can provide a bed highly adaptable for patients of various body sizes.
  • another embodiment of the bed (11) has parallel strips (13) as parts of the bottom (12) at the portion corresponding approximately to the waist of the patient, to allow bending of the bottom.
  • the strips are connected with each other on the under side.
  • Each of the strips (13) is shorter in width on the upper side than on the under side.
  • the bottom (12) has preferably five parallel strips (13) formed preferably of thermoplastic molding of hollow strips.
  • the parallel strips (13), as shown in FIG. 5, are almost trapezoidal in cross section and are sequentially connected on the under side, with gaps (17) formed at an angle of preferably about 16 degrees between the respectively adjacent opposite faces of the parallel strips (13).
  • a back raising mechanism (14) for bending the bottom (12) through a support arm (15) may be provided.
  • the support arm (15) is pivotally rotated to a raising position, causing the respective parallel strips (13) to be brought into mutual contact on their upper side, to bend the bottom upward at a large curvature (radius of curvature (18)).
  • the bottom (12) can be bent upward to an angle of about 80 degrees, to secure a proper space around the waist of the patient, which eases the feeling of pressure caused by raising the back portion.
  • the present invention can also be provided with parallel strips (13) formed to be trapezoidal in cross section only at approximately the upper half of the strips as shown in FIG. 6.
  • the bottom (12) is preferably formed of thermoplastic molding of hollow strips, it can be easily prepared, is simple in structure, and thus economically advantageous in view of the cost to manufacture.
  • the present invention provides a comfortable bed designed to ease the feeling of pressure caused by raising the back portion.
  • FIGS. 4 to 6 the gaps formed by the bottom structure are on the top and next to the bedding material.
  • the mattress (20) placed on the bottom may become caught between the parallel strips.
  • FIG. 9 shows how mattress or bedding material (20) can be caught in the gaps of the bottom structure when bent.
  • FIG. 9 includes an enlarged view of material caught in a gap.
  • FIG. 8 includes an enlarged view of one means (22) for connecting the flexible sheet to the bottom structure. In this method of attachment, the flexible sheet is attached directly (22) to the bottom structure at the end of the structure.
  • the gaps formed on the upper side can collect dust and dirt.
  • dust and dirt can not collect in the gaps.
  • the flexible sheet is easily cleaned, improving the health and safety of the patient.
  • the sheet also prevents any other objects from being caught in the gaps and impairing the function of the bottom structure.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)
US08/060,997 1993-05-14 1993-05-14 Bottom structure of a bed Expired - Lifetime US5369826A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/060,997 US5369826A (en) 1993-05-14 1993-05-14 Bottom structure of a bed
DE69326756T DE69326756T2 (de) 1993-05-14 1993-07-06 Bettboden
EP93201966A EP0632985B1 (de) 1993-05-14 1993-07-06 Bettboden

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/060,997 US5369826A (en) 1993-05-14 1993-05-14 Bottom structure of a bed
EP93201966A EP0632985B1 (de) 1993-05-14 1993-07-06 Bettboden

Publications (1)

Publication Number Publication Date
US5369826A true US5369826A (en) 1994-12-06

Family

ID=26133895

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/060,997 Expired - Lifetime US5369826A (en) 1993-05-14 1993-05-14 Bottom structure of a bed

Country Status (3)

Country Link
US (1) US5369826A (de)
EP (1) EP0632985B1 (de)
DE (1) DE69326756T2 (de)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216295B1 (en) 1997-04-17 2001-04-17 L & P Property Management Company Adjustable bed
US6347420B2 (en) 2000-04-12 2002-02-19 Franklin E. Elliott System for producing anthropometric, adjustable, articulated beds
US6647569B1 (en) * 2001-12-06 2003-11-18 Dave Tansek Stressable fabric
US20040181876A1 (en) * 2000-06-14 2004-09-23 Paramount Bed Co., Ltd. Bendable bottom member for bed
US20090288252A1 (en) * 2005-04-27 2009-11-26 Pascal Lobry Device for the suspension of slats for a bed
US7698765B2 (en) 2004-04-30 2010-04-20 Hill-Rom Services, Inc. Patient support
US20110072587A1 (en) * 2009-09-29 2011-03-31 Nomaco Inc. Foam cushion having reduced cross-section area foam profiles forming hollow portion(s) for deformation
GB2482791B (en) * 2010-08-11 2013-06-19 Wonderland Nursery Goods Child holding accessory suitable for use with a play yard
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods
US10154737B2 (en) 2014-07-02 2018-12-18 Wonderland Switzerland Ag Infant care apparatus
US10272007B2 (en) * 2010-09-24 2019-04-30 Hill-Rom Services, Inc. Bed frame, mattress and bed with enhanced chair egress capability
CN111743346A (zh) * 2020-06-11 2020-10-09 廖家宏 U型曲线电动床
US11280093B2 (en) * 2019-06-26 2022-03-22 EZ Flex LLC Forming a transition between two surfaces of different elevation
US11389120B2 (en) 2019-05-30 2022-07-19 Hill-Rom Services, Inc. Mattress having selectable patient weight valve, inductive power, and a digital x-ray cassette

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740953B1 (fr) * 1995-11-14 1998-01-23 Oniris Sa Sommier deformable a profil ergonomique
FR2805445B1 (fr) 2000-02-28 2002-06-28 Oniris Sa Plan de couchage a suspension ressort pour lit de relaxation
FR2824714A1 (fr) * 2001-05-18 2002-11-22 Michel Carteau Sommier cintrable
DE102009017896B4 (de) 2009-04-17 2014-08-28 Bionical Systems Ag Elektromotorisch verstellbare Stützeinrichtung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599963A (en) * 1968-08-06 1971-08-17 Jacquelyne A Grover Examination table
US3763507A (en) * 1971-08-27 1973-10-09 Miller Herman Inc Pediatric bed
JPS5130716A (ja) * 1974-09-09 1976-03-16 Sony Corp Teepukasetsuto
JPS5426164A (en) * 1977-07-29 1979-02-27 Aichi Kk Table
JPS5437594A (en) * 1977-08-30 1979-03-20 Nippon Telegr & Teleph Corp <Ntt> Semiconductor laser and its manufacture
US4275473A (en) * 1979-07-25 1981-06-30 Poirier Jean B Mattress
US4370767A (en) * 1981-04-14 1983-02-01 Commonwealth Of Puerto Rico Beach mat
US4662851A (en) * 1985-07-09 1987-05-05 Packaging Industries Group, Inc. Swim float
US4824411A (en) * 1988-01-25 1989-04-25 Mcclanahan Gary Segmented formable float apparatus and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238675A1 (de) * 1972-08-05 1974-02-14 Porsche Ag Ruhemoebel
IT8420506V0 (it) * 1984-01-13 1984-01-13 Poltrona Frau Spa Dispositivo di regolazione e di posizionamento per una poltrona.
CH670945A5 (en) * 1985-10-22 1989-07-31 Huesler Liforma Entwicklungs A Under-frame for bed or couch
FR2624711B1 (fr) * 1987-12-22 1991-07-26 Applic Plast Ste Dauph Dispositif portable pour rigidifier un ensemble sommier/matelas d'un lit
DE3912442A1 (de) * 1989-04-15 1990-10-18 Lehmbach Kurt Verformbares sitz- oder liegemoebel

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599963A (en) * 1968-08-06 1971-08-17 Jacquelyne A Grover Examination table
US3763507A (en) * 1971-08-27 1973-10-09 Miller Herman Inc Pediatric bed
JPS5130716A (ja) * 1974-09-09 1976-03-16 Sony Corp Teepukasetsuto
JPS5426164A (en) * 1977-07-29 1979-02-27 Aichi Kk Table
JPS5437594A (en) * 1977-08-30 1979-03-20 Nippon Telegr & Teleph Corp <Ntt> Semiconductor laser and its manufacture
US4275473A (en) * 1979-07-25 1981-06-30 Poirier Jean B Mattress
US4370767A (en) * 1981-04-14 1983-02-01 Commonwealth Of Puerto Rico Beach mat
US4662851A (en) * 1985-07-09 1987-05-05 Packaging Industries Group, Inc. Swim float
US4824411A (en) * 1988-01-25 1989-04-25 Mcclanahan Gary Segmented formable float apparatus and method

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216295B1 (en) 1997-04-17 2001-04-17 L & P Property Management Company Adjustable bed
US6347420B2 (en) 2000-04-12 2002-02-19 Franklin E. Elliott System for producing anthropometric, adjustable, articulated beds
US20040181876A1 (en) * 2000-06-14 2004-09-23 Paramount Bed Co., Ltd. Bendable bottom member for bed
US7346946B2 (en) * 2000-06-14 2008-03-25 Paramount Bed Company, Ltd. Bendable bottom member for bed
US6647569B1 (en) * 2001-12-06 2003-11-18 Dave Tansek Stressable fabric
US8146191B2 (en) 2004-04-30 2012-04-03 Hill-Rom Services, Inc. Patient support
US7698765B2 (en) 2004-04-30 2010-04-20 Hill-Rom Services, Inc. Patient support
US20090288252A1 (en) * 2005-04-27 2009-11-26 Pascal Lobry Device for the suspension of slats for a bed
US8191186B2 (en) * 2005-04-27 2012-06-05 Tournadre Sa Standard Gum Device for the suspension of slats for a bed
US20110072587A1 (en) * 2009-09-29 2011-03-31 Nomaco Inc. Foam cushion having reduced cross-section area foam profiles forming hollow portion(s) for deformation
GB2482791B (en) * 2010-08-11 2013-06-19 Wonderland Nursery Goods Child holding accessory suitable for use with a play yard
US8925128B2 (en) 2010-08-11 2015-01-06 Wonderland Nurserygoods Company Limited Child holding accessory suitable for use with a play yard
US9089225B2 (en) 2010-08-11 2015-07-28 Wonderland Nurserygoods Company Limited Child holding accessory for use with a play yard
US10272007B2 (en) * 2010-09-24 2019-04-30 Hill-Rom Services, Inc. Bed frame, mattress and bed with enhanced chair egress capability
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
US10154737B2 (en) 2014-07-02 2018-12-18 Wonderland Switzerland Ag Infant care apparatus
US11389120B2 (en) 2019-05-30 2022-07-19 Hill-Rom Services, Inc. Mattress having selectable patient weight valve, inductive power, and a digital x-ray cassette
US11826185B2 (en) 2019-05-30 2023-11-28 Hill-Rom Services, Inc. Mattress having selectable patient weight valve, inductive power, and a digital x-ray cassette
US11280093B2 (en) * 2019-06-26 2022-03-22 EZ Flex LLC Forming a transition between two surfaces of different elevation
CN111743346A (zh) * 2020-06-11 2020-10-09 廖家宏 U型曲线电动床
CN111743346B (zh) * 2020-06-11 2022-05-10 廖家宏 U型曲线电动床

Also Published As

Publication number Publication date
EP0632985B1 (de) 1999-10-13
DE69326756T2 (de) 2000-05-11
DE69326756D1 (de) 1999-11-18
EP0632985A1 (de) 1995-01-11

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